If you’re looking for a delightful treat that combines the classic flavors of banana bread with the convenience of bars, you’ve come to the right place! These Banana Bread Bars are moist, flavorful, and so easy to make. They are perfect for breakfast, an afternoon snack, or whenever you need a sweet pick-me-up. With simple ingredients that you probably already have in your pantry, you’ll be whipping up a batch in no time.
Why You’ll Keep Making It

The beauty of Banana Bread Bars lies in their versatility and ease. Unlike traditional banana bread, which requires careful monitoring of baking time, these bars are baked in a sheet pan, making them quicker to prepare and easier to serve. The combination of ripe bananas, creamy sour cream, and a touch of vanilla creates a rich flavor that will have everyone coming back for seconds. Plus, they can be dressed up with a cream cheese frosting or enjoyed plain—either way, they are a crowd-pleaser!
What’s in the Bowl
Here’s what you’ll need to create these delicious Banana Bread Bars:
- 1 cup sugar – For sweetness that balances the bananas.
- 1 cup sour cream – Adds moisture and a subtle tang.
- ½ cup butter, softened – Creates a rich texture.
- 2 eggs – For binding and richness.
- 3-4 ripe bananas, mashed (about 2 cups) – The star of the show, bringing natural sweetness and flavor.
- 2 teaspoons vanilla extract – Enhances the overall flavor.
- 2 cups all-purpose flour – The base for our bars.
- 1 teaspoon baking soda – Helps the bars rise.
- ½ teaspoon salt – Balances the sweetness.
- ½ cup chopped walnuts, optional – For added crunch and flavor.
- ½ cup butter – For the delicious cream cheese frosting.
- 4 cups powdered sugar – For sweetness in the frosting.
- 1 teaspoon vanilla extract – More flavor for the frosting.
- 3 tablespoons milk – To achieve the perfect frosting consistency.
Cook’s Kit
Before you dive into baking, gather the following tools:
- Mixing bowls – For combining wet and dry ingredients.
- Measuring cups and spoons – Precision is key in baking!
- Whisk or electric mixer – To blend the ingredients until smooth.
- Spatula – For scraping down the sides of the bowl.
- 9×13 inch baking pan – The perfect size for these bars.
- Parchment paper – For easy removal of the bars from the pan.
- Cooling rack – To cool the bars before icing.
Cook Banana Bread Bars Like This

Follow these simple steps to create your delicious Banana Bread Bars:
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). This ensures that your bars bake evenly.
Step 2: Prepare the Baking Pan
Line a 9×13 inch baking pan with parchment paper, leaving some overhang for easy removal later. This will keep your bars from sticking.
Step 3: Mix Wet Ingredients
In a large mixing bowl, cream together the softened butter and sugar until light and fluffy. Add the sour cream, eggs, mashed bananas, and vanilla extract. Mix until fully combined.
Step 4: Combine Dry Ingredients
In another bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring until just combined. If desired, fold in the chopped walnuts.
Step 5: Bake
Pour the batter into the prepared baking pan and spread it evenly. Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean.
Step 6: Cool
Allow the bars to cool in the pan for about 10 minutes before transferring them to a cooling rack to cool completely.
Step 7: Make the Frosting
In a mixing bowl, beat together the softened butter, powdered sugar, vanilla extract, and milk until smooth and creamy. Adjust the milk to achieve your desired consistency.
Step 8: Frost and Serve
Once the bars are completely cool, spread the cream cheese frosting over the top. Cut into squares and enjoy your delicious Banana Bread Bars!
Ingredient Flex Options

Feel free to customize your Banana Bread Bars with these ingredient variations:
- Nut-free: Omit the walnuts or substitute with chocolate chips for a sweet twist.
- Lower sugar: Reduce sugar to ¾ cup or use a sugar substitute.
- Gluten-free: Substitute all-purpose flour with a gluten-free flour blend.
- Add-ins: Toss in some dried fruits, like cranberries or raisins, for extra flavor.
Cook’s Commentary
These Banana Bread Bars are not only delicious but also incredibly forgiving. If you find yourself with a few overripe bananas, this recipe is your go-to solution. The sour cream adds a delightful moistness, making them perfect for a crowd or a family gathering. Plus, the frosting elevates them to a whole new level of indulgence!
Make Ahead Like a Pro
If you want to prepare ahead of time, these bars do well in the refrigerator for up to a week. You can also freeze them for up to three months. Just make sure to wrap them tightly to prevent freezer burn. When you’re ready to enjoy, simply thaw overnight in the fridge, and frost before serving.
Popular Questions
Can I use frozen bananas for this recipe?
Absolutely! Just make sure to thaw and drain any excess liquid before mashing and adding them to the batter.
How do I know when my bars are done baking?
Check for doneness by inserting a toothpick into the center. If it comes out clean or with just a few crumbs, they are ready!
Can I leave out the frosting?
Yes, the bars are delicious on their own, but the cream cheese frosting adds a nice touch of sweetness and creaminess.
What can I do with leftover bars?
These Banana Bread Bars can be stored in an airtight container at room temperature for a couple of days or in the refrigerator for up to a week. They also make a delightful addition to lunchboxes!
Healthy-ish Favorites
If you’re looking for more delicious bar recipes, check out these favorites:
- Gooey Chocolate Peanut Butter Bars – A rich and gooey treat for chocolate lovers.
- Caramel Apple Cheesecake Bars – A perfect blend of caramel and apple flavors.
- Apple Crumble Cheesecake Bars – Creamy cheesecake meets a crumbly topping.
Hungry for More?
Whether you’re a novice baker or a seasoned pro, these Banana Bread Bars are sure to impress. With their comforting flavors and simple preparation, they’ll quickly become a favorite in your household. So gather your ingredients, preheat that oven, and get ready to enjoy a warm, delicious treat that brings a smile to everyone’s face!

Banana Bread Bars
Ingredients
For the Bars:
- 1 cup sugar For sweetness that balances the bananas.
- 1 cup sour cream Adds moisture and a subtle tang.
- ½ cup butter softened, creates a rich texture.
- 2 eggs For binding and richness.
- 3-4 ripe bananas mashed (about 2 cups), the star of the show.
- 2 teaspoons vanilla extract Enhances the overall flavor.
- 2 cups all-purpose flour The base for our bars.
- 1 teaspoon baking soda Helps the bars rise.
- ½ teaspoon salt Balances the sweetness.
- ½ cup chopped walnuts optional, for added crunch and flavor.
For the Cream Cheese Frosting:
- ½ cup butter for the frosting.
- 4 cups powdered sugar For sweetness in the frosting.
- 1 teaspoon vanilla extract More flavor for the frosting.
- 3 tablespoons milk To achieve the perfect frosting consistency.
Instructions
Instructions
- Step 1: Preheat your oven to 350°F (175°C). This ensures that your bars bake evenly.
- Step 2: Line a 9x13 inch baking pan with parchment paper, leaving some overhang for easy removal later.
- Step 3: In a large mixing bowl, cream together the softened butter and sugar until light and fluffy. Add the sour cream, eggs, mashed bananas, and vanilla extract. Mix until fully combined.
- Step 4: In another bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring until just combined. If desired, fold in the chopped walnuts.
- Step 5: Pour the batter into the prepared baking pan and spread it evenly. Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean.
- Step 6: Allow the bars to cool in the pan for about 10 minutes before transferring them to a cooling rack to cool completely.
- Step 7: In a mixing bowl, beat together the softened butter, powdered sugar, vanilla extract, and milk until smooth and creamy. Adjust the milk to achieve your desired consistency.
- Step 8: Once the bars are completely cool, spread the cream cheese frosting over the top. Cut into squares and enjoy!
Equipment
- Mixing bowls
- Measuring cups and spoons
- Whisk or electric mixer
- Spatula
- 9x13 inch Baking Pan
- Parchment Paper
- Cooling rack
Notes
- Use overripe bananas for maximum sweetness and flavor.
- Store leftovers in an airtight container for up to a week.
- For a nut-free version, substitute walnuts with chocolate chips.
